<p>
Quote from walterjennings: The concept of state wars has become antiquated since the invention of nuclear weapons. No major state will go to war with any other major state for the simple fact that they don't want to be wiped off the face of the planet for doing so. Like it or not, mutually assured destruction works as long as the person with the button isn't batshit insane. Which I think in all current cases, they are all sane.
</p>
<p>
</p>
<p><img title="How Many Nukes Will Destroy The World?" src="http://infobeautiful2.s3.amazonaws.com/nukes_550.gif" alt="How Many Nukes Will Destroy The World?" height="2053" width="550" />
</p>
<p><strong>Ah but we all live in cities now</strong>
</p>
<p>I tried to recover a eye-popping stat with another quick calc. 50% of us live in densely populated cities now. Maybe we could wipe out all city-dwelling humanity. YES!
</p>
<p>Nope. Still no good.
</p>
<p><img class="alignnone" src="http://infobeautiful2.s3.amazonaws.com/nukes2_550.gif" />
</p>In the largest study ever done about what the consequences of a full scale nuclear war might be.
<br />
<br /> They estimated that 14,000 weapons would be used.
<br />
<br /> That it would cause a nuclear winter that would last 3 years before the atmosphere cleared.
<br />
<br /> That 40% of the worlds population would die from direct effects of the nuclear weapons, starvation or disease.
<br />
<br /> That study was done at the height of the cold war, when the US and the Soviet union had over 30,000 nuclear weapons.
<br />
<br /> Today the world combined only has around 6,000 operational nuclear weapons. And we do not have the delivery capability to use all of them.